bjoernager/rust
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Collect directly into ThinVec

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This commit is contained in:
Michael Howell 2025-01-29 15:23:09 -07:00
parent e90f129adf
commit 3814ec5b16
2 changed files with 7 additions and 9 deletions
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10
src/librustdoc/clean/mod.rs
View file

@ -516,8 +516,7 @@ fn projection_to_path_segment<'tcx>(
ty.map_bound(|ty| &ty.args[generics.parent_count..]),
false,
def_id,
)
.into(),
),
constraints: Default::default(),
},
}
@ -2202,8 +2201,7 @@ pub(crate) fn clean_middle_ty<'tcx>(
alias_ty.map_bound(|ty| ty.args.as_slice()),
true,
def_id,
)
.into(),
),
constraints: Default::default(),
},
},
@ -2521,7 +2519,7 @@ fn clean_generic_args<'tcx>(
) -> GenericArgs {
// FIXME(return_type_notation): Fix RTN parens rendering
if let Some((inputs, output)) = generic_args.paren_sugar_inputs_output() {
let inputs = inputs.iter().map(|x| clean_ty(x, cx)).collect::<Vec<_>>().into();
let inputs = inputs.iter().map(|x| clean_ty(x, cx)).collect::<ThinVec<_>>().into();
let output = match output.kind {
hir::TyKind::Tup(&[]) => None,
_ => Some(Box::new(clean_ty(output, cx))),
@ -2542,7 +2540,7 @@ fn clean_generic_args<'tcx>(
}
hir::GenericArg::Infer(_inf) => GenericArg::Infer,
})
.collect::<Vec<_>>()
.collect::<ThinVec<_>>()
.into();
let constraints = generic_args
.constraints

6
src/librustdoc/clean/utils.rs
View file

@ -81,11 +81,11 @@ pub(crate) fn clean_middle_generic_args<'tcx>(
args: ty::Binder<'tcx, &'tcx [ty::GenericArg<'tcx>]>,
mut has_self: bool,
owner: DefId,
) -> Vec<GenericArg> {
) -> ThinVec<GenericArg> {
let (args, bound_vars) = (args.skip_binder(), args.bound_vars());
if args.is_empty() {
// Fast path which avoids executing the query `generics_of`.
return Vec::new();
return ThinVec::new();
}
// If the container is a trait object type, the arguments won't contain the self type but the
@ -144,7 +144,7 @@ pub(crate) fn clean_middle_generic_args<'tcx>(
};
let offset = if has_self { 1 } else { 0 };
let mut clean_args = Vec::with_capacity(args.len().saturating_sub(offset));
let mut clean_args = ThinVec::with_capacity(args.len().saturating_sub(offset));
clean_args.extend(args.iter().enumerate().rev().filter_map(clean_arg));
clean_args.reverse();
clean_args